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From: Matthew Wilcox <matthew@wil.cx>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@suse.de>,
	Greg KH <greg@kroah.com>, Luben Tuikov <ltuikov@yahoo.com>,
	Matthew Dharm <mdharm-kernel@one-eyed-alien.net>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
	linux-usb@vger.kernel.org
Subject: Re: [PATCH repost 3] [SCSI] Retrieve the Caching mode page
Date: Wed, 8 Dec 2010 09:00:28 -0700	[thread overview]
Message-ID: <20101208160028.GB21909@parisc-linux.org> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1012081054160.1885-100000@iolanthe.rowland.org>

On Wed, Dec 08, 2010 at 10:57:46AM -0500, Alan Stern wrote:
> In the strictest sense, there's always a possibility that any change
> will crash _some_ device somewhere.  In this case I believe the
> probability is very low.  Luben's patch does not change the commands
> sent to a USB device; it only changes the kernel's interpretation of
> the data sent back.  Unless things are terribly badly broken, this 
> won't hurt.

It doesn't change the _discovery_ commands sent to the device, but (I
think ...) it will change the subsequent commands sent to the device;
eg we'll now send it SYNCHRONISE CACHE when we wouldn't have before.
I think it's low-risk too, and am in favour of seeing this patch applied.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

  reply	other threads:[~2010-12-08 16:00 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-08  0:02 [PATCH repost 3] [SCSI] Retrieve the Caching mode page Luben Tuikov
2010-12-08  0:12 ` Greg KH
2010-12-08  5:05   ` James Bottomley
2010-12-08  8:01     ` Luben Tuikov
2010-12-08 15:16     ` Alan Stern
2010-12-08 15:43       ` James Bottomley
2010-12-08 15:57         ` Alan Stern
2010-12-08 16:00           ` Matthew Wilcox [this message]
  -- strict thread matches above, loose matches on Subject: below --
2010-12-05 20:53 Luben Tuikov
2010-11-23  8:43 Luben Tuikov
2010-11-22 16:56 Luben Tuikov
2010-11-22 17:07 ` Linus Torvalds
2010-11-22 19:02   ` Douglas Gilbert
2010-11-23  4:59     ` Matthew Dharm
2010-11-23 18:40       ` Douglas Gilbert
2010-11-22 20:02   ` Luben Tuikov
2010-11-23  5:00     ` Matthew Dharm
2010-11-23  9:25       ` Luben Tuikov
2010-11-23 14:30         ` Matthew Dharm
2010-11-24  9:02           ` Luben Tuikov
2010-11-24 10:10             ` James Bottomley
2010-11-24 14:48               ` Christoph Hellwig
2010-11-24 14:49               ` Alan Stern
2010-11-24 14:58                 ` James Bottomley
2010-11-24 16:55               ` Luben Tuikov

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